Review on Versatile Cut-to-Fit Carbon Pad Pre-Filters for Air Purifiers, Furnace Filters, Trash Cans, and Air Conditioner Filters (1) by Onur Donovan

My heating/cooling system doesn't have enough room for filters to add anything. I placed it OUTSIDE the intakes on top of my oven, facing the wash/dirt chamber to trap outside odors and large dust particles clogging my overpriced fine filters. Every week I take it out to my patio and put it in direct sunlight for a couple of hours to revitalize the filter and finish with a brush and lint roller. It's not said to contain "activated charcoal," but it works better after sunbathing. I was willing to fold it down to make it thicker, but I didn't want to put any extra stress on my air system's motor, and I didn't find it necessary! The internal filters were equally clean on both sides. When I opened my mail today, I found a handwritten thank you note from the seller. This is my return, thanks for a great product but most of all for taking the time to wish me the best. I see from other reviews that they also found that this filter gives us the opportunity to be creative and take better care of our home and our health. And the thank you letter reminded me of the importance of being kind, positive, and grateful. And I'm so glad someone decided to start a business with a product that actually works. And that Revane allows us all to participate in this process. What an American idea!